Momentum

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv.

Front

Why is momentum considered to be a vector quantity?

Back

Momentum is a vector quantity because it has both magnitude and direction.

Front

What is the formula for calculating momentum?

Back

The formula for momentum is p = mv, where p is momentum, m is mass, and v is velocity.

Front

What is the unit of momentum?

Back

The unit of momentum is kg·m/s.

Front

What happens to momentum in a closed system during a collision?

Back

In a closed system, the total momentum before the collision is equal to the total momentum after the collision (law of conservation of momentum).

Front

What is an elastic collision?

Back

An elastic collision is a collision in which both momentum and kinetic energy are conserved.

Front

What is an inelastic collision?

Back

An inelastic collision is a collision in which momentum is conserved, but kinetic energy is not conserved.

Front

How do you calculate the momentum of an object?

Back

To calculate the momentum of an object, multiply its mass (in kg) by its velocity (in m/s).

Front

What is the relationship between force and momentum?

Back

The relationship is given by the equation F = Δp/Δt, where F is force, Δp is the change in momentum, and Δt is the change in time.

Front

What is the significance of direction in momentum?

Back

The direction of momentum is important because it indicates the direction in which an object is moving.